CN203480291U - Metro stray current corrosion monitoring and protection system based on the Internet of things - Google Patents
Metro stray current corrosion monitoring and protection system based on the Internet of things Download PDFInfo
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- CN203480291U CN203480291U CN201320539480.XU CN201320539480U CN203480291U CN 203480291 U CN203480291 U CN 203480291U CN 201320539480 U CN201320539480 U CN 201320539480U CN 203480291 U CN203480291 U CN 203480291U
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Abstract
The utility model discloses a metro stray current corrosion monitoring and protection system based on the Internet of things and relates to the technical field of metro stray current monitoring. The system is mainly composed of an application layer, a network layer and a sensing layer. The application layer is used for WEB publishing, real-time monitoring and corrosion prediction, wherein real-time monitoring mainly includes data monitoring, historical data query, fault display and control command receiving. The network layer is used for data communication. The sensing layer is composed of a sink node and a sensing node, wherein the sensing node uses an intelligent sensor to monitor polarization potential and soil resistivity of a steel rail in real time and transmits the polarization potential and the soil resistivity to the sink node through communication via the Ethernet, a CAN bus and an RS485 serial port, and the sink node uses an intelligent draining device to receive data sent from the intelligent sensor and transmits the data to the application layer through the network layer. The metro stray current corrosion monitoring and protection system based on the Internet of things has the advantages of high degree of intelligence, high precision, stable and reliable operation, strong anti-interference ability and good use.
Description
Technical field
The utility model relates to Metro Stray Current Monitoring technical field, specifically a kind of system that is applicable to metro stray current corrosion Monitoring and protection.
Background technology
Current Metro Stray Current Monitoring system is generally divided into centralized data acquisition and distributed data acquisition, and during centralized collection, analog quantity transmission range is far away, and the accuracy of measurement reduces, and the dilatation again of carrying out system difficulty comparatively.Distributed on line monitoring system can realize automatic on-line measurement, but system networking separately mostly, networking cost is higher and networking technology backward, and reliability is not high.Be in particular in: because networking technology falls behind, communication distance is restricted.
Technology of Internet of things is the focus that society is paid close attention to, it is the industry of a thriving development, it can talk with thing wisdom people, the world that creates a wisdom by the integrated application of various cognition technologies, modern network technology, artificial intelligence technology and automatic technology.At present, technology of Internet of things is widely used in the every field of the national life such as urban transportation, national defense safety, automatically-monitored, the manufacturing.
Internet of Things is by various information Perception equipment, by specific agreement, any object and internet is coupled together, and carries out exchange and the communication of information, thereby realizes a kind of network of the functions such as intelligent identification, location, monitoring and management.From technological layer, understand Internet of Things and just refer to that object can carry out information Perception by Intellisense equipment, then pass through transmission network, arrive specific data center and carry out information processing and mutual, finally realize people and thing alternately, thing and the mutual intelligent network of thing.And understand Internet of Things from application, be that thing phase is linked a network, form " Internet of Things ", then " Internet of Things " is combined with existing communication network, realizes the mutual of people and thing, can intelligent managing and live.The intension of Internet of Things is mainly reflected in following three aspects:
(1) interconnected: the thing that need to network can be realized and interconnecting;
(2) identify and communicate by letter: " thing " of Internet of Things possesses the function of automatic identification and the communication of thing thing;
(3) intellectuality: network system has the feature of self-feedback, Based Intelligent Control and robotization.
The essential characteristic of Internet of Things is exactly networking, thing connectionization, interconnected, robotization, perception, intellectuality etc.Meanwhile, the marrow of Internet of Things is not only thing realize is connected and controlled, and it can also give the implication that network is new by the expansion of technological means, realizes melting mutually and interaction between people and thing, thing and thing, or even exchanges and communication.Internet of Things is data-centered application oriented network, mainly has the functions such as information Perception, data processing, data transmission and decision support.Its hardware platform can be comprised of several major parts such as Sensor Network, core bearer network and information service systems.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of metro stray current corrosion Monitoring and protection system based on Internet of Things, has intelligent degree high, and degree of accuracy is high, and working stability is reliable, and antijamming capability is strong, practicality simple to operate.
The utility model is realized with following technical scheme: a kind of metro stray current corrosion Monitoring and protection system based on Internet of Things, comprises
Application layer, issues, monitors in real time and corrosion prediction for WEB, monitors in real time main responsible data monitoring, the inquiry of historical data, fault demonstration and receives control command;
Network layer, for carrying out data communication;
Sensing layer, is comprised of aggregation node and sensing node, and sensing node adopts polarized potential and the soil resistivity of intelligent sensor Real-Time Monitoring rail and passes to aggregation node by Ethernet, CAN bus and RS485 serial communication; Aggregation node adopts Intelligent electric drainage device to receive the data from the transmission of intelligent sensor, and is delivered to application layer by network layer.
It is further: described application layer comprises the computer management center of a connection printer, computer management center connects the real-time database storing of resting, database connects the server that a pair of data are processed, server connects inner PC by corporate lan, and server sends to data on the Internet and carries out for far-end PC by connecting fire wall simultaneously;
Described network layer utilizes Ethernet and GPRS to carry out data communication;
Described sensing layer comprises contrast electrode and the structural steel being arranged near the soil of track, track is arranged on ground for driving, the information such as the polarized potential of intelligent sensor monitoring contrast electrode and soil resistivity are also sent to Intelligent electric drainage device by Ethernet, RS485 serial ports and standby CAN interface communication, Intelligent electric drainage device is crossed fiber optical transceiver by information exchange information is passed to network layer, in network layer data, through ethernet communication, communicates by letter information is sent to application layer with GPRS.
The beneficial effects of the utility model: intelligent degree is high, and degree of accuracy is high, and working stability is reliable, and antijamming capability is strong, and usability is better.
accompanying drawing explanation
Fig. 1 is metro stray current corrosion Monitoring and protection system principle diagram;
Fig. 2 is intelligent sensor theory diagram;
Fig. 3 is metro stray current corrosion Monitoring and protection overall system Organization Chart.
In figure: 1, far-end PC, 2, fire wall, 3, server, 4, database, 5, inner PC, 6, computer management center, 7, printer, 8, fiber optical transceiver, 9, Intelligent electric drainage device, 10, intelligent sensor, 11, rail, 12, structural steel, 13, contrast electrode.
embodiment
As shown in Figure 1, this system is mainly comprised of sensing layer, network layer and application layer three parts.Sensing layer wherein sensing layer is comprised of sensing node and aggregation node again, mainly completes Information perception and processing.Network layer utilizes the GPRS network of existing subway communication network or oneself establishment to carry out data transmission, mainly completes information transmitting.Application layer is mainly comprised of microcomputer management system, database, server, human-computer interaction device etc., realizes application service.
Intelligent sensor in sensing node can Real-Time Monitoring stray current polarized potential and the information such as soil resistivity, and send the information of monitoring stray current to Intelligent electric drainage device in aggregation node by Ethernet interface, CAN interface and RS485 interface.Aggregation node is also sent to network layer by ethernet communication and GPRS communication module by data.Network layer is to be mainly responsible for transmitting accurately data, carries out the data transmission of LAN (Local Area Network) by the existing ethernet communication system of subway, also can independent design have GPRS communication port by oneself simultaneously, sets up dedicated channel, is responsible for the transmission of data.
Application layer mainly realizes application service, and man-machine interaction mainly comprises WEB issue, monitoring and three functional modules of corrosion prediction, the wherein main functions such as data monitoring, the inquiry of historical data, control command response and fault demonstration of being responsible for of monitoring in real time in real time.
As shown in Figure 2, the A/D change-over circuit that intelligent sensor has an amplification filtering multi-channel conversion circuit, is connected with amplification filtering multi-channel conversion circuit, the microcontroller being connected with A/D change-over circuit, the GPRS module being connected with microcontroller respectively, ethernet interface circuit, alarm indication circuit, memory circuit and power circuit.Described amplification filtering multi-channel conversion circuit adopts operational amplifier A D620 and multiway analog switch HCF4052; Described A/D change-over circuit adopts A/D conversion chip TLC2543; Described microcontroller adopts STM32F107VC chip; Described Ethernet interface comprises network communication physical layer interface and network transformer; The DP83848CVV chip that described network communication physical layer interface adopts National Semiconductor to produce; The HR911105A that network transformer adopts the design of HanRun company to produce; Described GPRS module adopts GPRS DTU module, carries out RS232 communicate by letter with microcontroller.
As shown in Figure 3, the framework of this system is also realized according to sensing layer, network layer and application layer three parts.
Application layer forms a Grid information sharing layer by computer management center, database, server, inner PC and exterior PC etc., realizes application service, man-machine interaction.The status information of stray current corrosion data, protective device in whole subway line is monitored at computer management center in real time, can carry out data remote access and control, realizes information sharing.The information that computer management center 6 receives from network layer in application layer, and connect printer 7 and data-printing out can be analyzed to preservation for staff, 6 connection data storehouses 4, computer management center are by real-time the storing of information, and database 4 connection servers 3 are processed some data.The internal lan of the PC of intra-company 5 by company can access services device 3 monitoring of stray current data above, and server 3 can send to data on the Internet and carries out for far-end PC 1 by connecting fire wall 2 simultaneously.Thereby formed a kind of metro stray current corrosion Monitoring and protection system based on Internet of Things, realized the corrosion monitoring of metro stray current and protection.
Network layer is to be mainly responsible for transmitting accurately data, carries out the data transmission of LAN (Local Area Network) by the existing ethernet communication system of subway, by GPRS communication port, sets up dedicated channel simultaneously, is responsible for the transmission of data.
Sensing layer is mainly comprised of aggregation node and sensing node, near the intelligent sensor that sensing node You electric substation is, subway line is along the line forms, and the information such as the polarized potential of Real-Time Monitoring rail and soil resistivity are also passed to aggregation node by Ethernet, CAN bus and RS485 serial communication; Aggregation node adopts Intelligent electric drainage device to receive the data from the transmission of intelligent sensor, and communicate by letter and be delivered to host computer with GPRS by Ethernet, Intelligent electric drainage device self is by the diode circuit of circuit controls module controls drainage, by touch LCD integrated apparatus, realize information interaction, finally realize the corrosion monitoring of metro stray current and protection.Intelligent electric drainage device completes convergence, forwarding and the interactive function of sensing node, is responsible for stray current corrosion data Real-Time Monitoring, completes the data communication of intelligent sensor and network layer, also has the function of automatic current drainage protection simultaneously.Intelligent electric drainage device has abundant RS485 interface, RS232 interface, and ethernet interface, realizes and computer management center, substation autometion system center to center communications; Can set up independently GPRS data link, realize data communication, if there is stray current corrosion abnormal condition situation, by GPRS SMS notification operator on duty, process in time.
In sensing layer, contrast electrode 13 and structural steel 12 are installed near the soil of track 11, and track is arranged on ground for driving.The information such as the polarized potential of intelligent sensor 10 monitoring contrast electrodes and soil resistivity are also sent to Intelligent electric drainage device 9 by Ethernet, RS485 serial ports and standby CAN interface communication.Wherein an Intelligent electric drainage device 9 can receive the data of a plurality of intelligent sensors 10 transmissions and process.Intelligent electric drainage device 9 is crossed fiber optical transceiver 8 by information exchange information is passed to network layer, in network layer data, through ethernet communication, communicates by letter information is sent to application layer with GPRS.Wherein in network layer, receive the data from a plurality of Intelligent electric drainage devices 9, form Intelligent electric drainage network.
Claims (2)
1. the metro stray current corrosion Monitoring and protection system based on Internet of Things, is characterized in that: comprise
Application layer, issues, monitors in real time and corrosion prediction for WEB, monitors in real time main responsible data monitoring, the inquiry of historical data, fault demonstration and receives control command;
Network layer, for carrying out data communication;
Sensing layer, is comprised of aggregation node and sensing node, and sensing node adopts polarized potential and the soil resistivity of intelligent sensor Real-Time Monitoring rail and passes to aggregation node by Ethernet, CAN bus and RS485 serial communication; Aggregation node adopts Intelligent electric drainage device to receive the data from the transmission of intelligent sensor, and is delivered to application layer by network layer.
2. a kind of metro stray current corrosion Monitoring and protection system based on Internet of Things according to claim 1, it is characterized in that: described application layer comprises the computer management center (6) of a connection printer (7), computer management center (6) connects the database storing (4) of resting real-time, database (4) connects the server (3) that a pair of data are processed, server (3) connects inner PC(5 by corporate lan), server (3) sends on the Internet data for far-end PC(1 by connecting fire wall (2) simultaneously) carry out,
Described network layer utilizes Ethernet and GPRS to carry out data communication;
Described sensing layer comprises contrast electrode (13) and the structural steel (12) being arranged near the soil of track (11), track is arranged on ground for driving, the information such as the polarized potential of intelligent sensor (10) monitoring contrast electrode and soil resistivity are also sent to Intelligent electric drainage device (9) by Ethernet, RS485 serial ports and standby CAN interface communication, Intelligent electric drainage device (9) is crossed fiber optical transceiver (8) by information exchange information is passed to network layer, in network layer data, through ethernet communication, communicates by letter information is sent to application layer with GPRS.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320539480.XU CN203480291U (en) | 2013-08-30 | 2013-08-30 | Metro stray current corrosion monitoring and protection system based on the Internet of things |
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| CN201320539480.XU CN203480291U (en) | 2013-08-30 | 2013-08-30 | Metro stray current corrosion monitoring and protection system based on the Internet of things |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107256624A (en) * | 2017-07-20 | 2017-10-17 | 湖南高速铁路职业技术学院 | Intelligent monitoring of stray current remote data acquisition system |
| CN110927498A (en) * | 2019-12-09 | 2020-03-27 | 南京地铁建设有限责任公司 | A stray current monitoring and protection system and method |
| CN112485503A (en) * | 2020-10-21 | 2021-03-12 | 天津大学 | Stray current measuring system and method based on big data processing |
| CN112989660A (en) * | 2021-03-15 | 2021-06-18 | 广州地铁设计研究院股份有限公司 | Method for predicting corrosion of pipeline under subway stray current based on partial least square method |
| US11333598B1 (en) | 2021-07-27 | 2022-05-17 | United Arab Emirates University | Material degradation monitoring system |
-
2013
- 2013-08-30 CN CN201320539480.XU patent/CN203480291U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107256624A (en) * | 2017-07-20 | 2017-10-17 | 湖南高速铁路职业技术学院 | Intelligent monitoring of stray current remote data acquisition system |
| CN110927498A (en) * | 2019-12-09 | 2020-03-27 | 南京地铁建设有限责任公司 | A stray current monitoring and protection system and method |
| CN112485503A (en) * | 2020-10-21 | 2021-03-12 | 天津大学 | Stray current measuring system and method based on big data processing |
| CN112485503B (en) * | 2020-10-21 | 2022-07-29 | 天津大学 | A stray current measurement system and method based on big data processing |
| CN112989660A (en) * | 2021-03-15 | 2021-06-18 | 广州地铁设计研究院股份有限公司 | Method for predicting corrosion of pipeline under subway stray current based on partial least square method |
| US11333598B1 (en) | 2021-07-27 | 2022-05-17 | United Arab Emirates University | Material degradation monitoring system |
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Owner name: XUZHOU ZHONGKUANG TRANSMISSION TRACK TECHNOLOGY CO Free format text: FORMER OWNER: XUZHOU SHICHANG ELECTROMECHANICAL TECHNOLOGY CO., LTD. Effective date: 20150625 |
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Effective date of registration: 20150625 Address after: Second No. 221008 Industrial Park, Xuzhou hi tech Zone, Jiangsu, Zhujianglu Road, Xuzhou 7 Patentee after: XUZHOU ZHONGKUANG TRANSMISSION TRACK TECHNOLOGY CO., LTD. Address before: 221116 No. 23 Beijing North Road, Copper Mt. District, Jiangsu, Xuzhou Patentee before: Xuzhou Shichang Electromechanical Technology Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140830 |
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| EXPY | Termination of patent right or utility model |