CN112583473A - High-protection optical fiber ring network area control unit and method - Google Patents
High-protection optical fiber ring network area control unit and method Download PDFInfo
- Publication number
- CN112583473A CN112583473A CN202011464211.2A CN202011464211A CN112583473A CN 112583473 A CN112583473 A CN 112583473A CN 202011464211 A CN202011464211 A CN 202011464211A CN 112583473 A CN112583473 A CN 112583473A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- ring network
- fiber ring
- port
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
- H04B10/275—Ring-type networks
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computing Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a high-protection optical fiber ring network area control unit and a method, which comprises a high-protection case and an embedded CPU with an optical fiber ring network, wherein the embedded CPU is provided with a double-optical fiber ring network in the high-protection case and comprises a control unit connected with an Ethernet port, a CAN port, an RS485 port, an RS232 port, an analog quantity acquisition port, a digital quantity acquisition port and a relay output port, and supports message transmission comprising IEC61850, IEC60870-5-104 and MODBUS protocols; the distributed data acquisition and forwarding are realized based on a software and hardware platform, and the distributed data acquisition and forwarding integrated in a high-protection case is suitable for severe operating environments. The invention is used as an important component of the comprehensive pipe rack operation and maintenance management and control system, collects and collects various information in a complex operation environment for processing and distribution, and provides effective guarantee for the safe operation of the comprehensive pipe rack operation and maintenance management and control system.
Description
Technical Field
The invention relates to the field of electricians, in particular to a high-protection optical fiber ring network area control unit and a method.
Background
Along with the reinforcing of country to city planning construction management and the propulsion to city utility tunnel construction, utility tunnel fortune dimension management and control system can carry out 24 hours incessant monitoring to the piping lane, carries out the remote control operation to corresponding equipment, and the prevention or in time discover and cut off the accident source, prevent the accident and enlarge the ization, guarantee piping lane safe operation.
The regional control unit is an important information node of the operation and maintenance management and control system of the comprehensive pipe rack, acquires and processes information of various devices through different communication media, communication protocols and input and output interfaces, forms standard information and transmits the standard information to the centralized control center through a data channel.
Most of the existing regional control units are transplanted based on the mature products of in-place devices of domestic power equipment manufacturing enterprises, the production cost is high, the collection and control functions of solidification integration are strong but cannot be flexibly configured, various communication ports are not integrated, the complex communication management function cannot be realized, and the universality of different application scenes is not realized. Many sensor manufacturing enterprises have manufacturing experience on the protection level of products, and part of regional control units with simple communication management functions are also provided, but the internal structure built based on the combination of the simply customized PLC module and the sensor module has low integration level, weak gathering capability of acquisition and control functions and single performance of communication transmission.
The underground pipe gallery inner space is limited and relatively airtight, and the longer the distance, the higher and the degree of difficulty of construction cost is, and it is various to lay various pipelines. In a long-term unmanned operation environment, once accident potential occurs, the accident cannot be timely handled, accidents are easily caused, severe environment conditions such as a large amount of dust and water immersion may occur within a certain time, and the requirement on the external protection level of the area control unit is high. The existing optical fiber network and serial port communication technology is mature, a large number of cables are required to be interconnected and intercommunicated under the distributed mixed communication requirement, manpower and material resources are wasted due to the laying of the large number of cables, and the wiring space is wasted, so that the engineering maintenance is not facilitated.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a high-protection optical fiber ring network area control unit and a method, which meet the requirements of data acquisition, communication and summarization of various devices in a comprehensive pipe rack under a severe environment, and realize a complex communication management function and universality in different application scenes.
The technical scheme is as follows: the invention discloses a high-protection optical fiber ring network area control unit and a method, wherein the control unit comprises the following steps: the high protection case and the embedded CPU with the optical fiber ring network, the embedded CPU has a double optical fiber ring network in the high protection case, and the embedded CPU is connected with the Ethernet port, the CAN port, the RS485 port, the RS232 port, the analog quantity acquisition port, the digital quantity acquisition port and the relay output port, and supports the message transmission including IEC61850, IEC60870-5-104 and MODBUS protocols; the double-optical fiber ring network is used for large-flow video stream transmission and information interaction after aggregation, and is also used for communication of redundant switching when a single point fails in the ring network.
Preferably, the optical fiber ring network area control unit collects and collects the information of the pipe gallery area in a segmented mode and then transmits the information to the centralized control center.
The information segmentation collection comprises the step that the number of various interfaces is configured according to the requirements of the segments by the ARM-based PCI bus, so that the cost is saved, and meanwhile, the debugging workload is reduced. The software aspect is based on the distributed monitoring technology, different software configurations are adopted according to hardware configurations, a unified software configuration tool is matched with various protocol interfaces to support the great improvement of compatibility, each section can be independently debugged, and the ring network is different according to IP addresses, so that remote communication monitoring is facilitated.
In the implementation process, the case is divided into an upper cover and a shell, the upper cover is provided with a groove, an O-shaped gasket is arranged in the groove, a raised line of the shell can be embedded into the groove, and a combined sealing mode of concave-convex surface occlusion and the O-shaped gasket is adopted between the upper cover and the shell.
Preferably, the periphery of the upper cover and the enclosure cover is provided with corresponding screw holes, and six fastening screws are adopted to compress the cover.
Preferably, the casing is provided with a PG7 type waterproof joint and an aviation plug which meet high protection, the joint and the plug adopt a combined sealing mode of a hollow threaded sleeve and a gasket, the threaded sleeve is matched with a flange plate and fixed on the casing, the middle part of the threaded sleeve is provided with a limiting protrusion, and the gasket is arranged between the limiting protrusion and the casing for sealing; the wiring passes through the threaded sleeve and the flange head, and is used for sealing through the rubber ring at the tail part of the sleeve and the wiring joint, and the gasket and the rubber ring have the characteristic of pressure deformation and are used for isolating water and gas outside the shell.
A high-protection optical fiber ring network area control method comprises the following steps:
step 1: each interface data is from sensors such as gas sensors, temperature and humidity sensors, infrared acousto-optic alarms and the like distributed in the pipe gallery subsection, equipment which does not support the access of a communication port is accessed into an analog quantity acquisition loop, a digital quantity acquisition loop and a relay control loop, and equipment which supports the access of the communication port is accessed into a corresponding communication port;
step 2: the acquisition loop, the control loop, the Ethernet port, the CAN port, the RS485 interface and the RS232 interface are concurrently accessed through the PCI bus based on the ARM architecture, and the access protocol processing software of the area control unit CAN complete acquisition and issuing of data of each interface through a bottom driver according to configuration;
and step 3: when the data processing service software of the area control unit is initialized, the data processing service software is analyzed after loading an IEC61850 protocol data model, data collected by the access protocol processing software is circularly processed during normal operation, and then different data structures are synchronously forwarded to an IEC61850 protocol, an IEC60870-5-104 protocol and other conversion protocols according to configuration.
And 4, step 4: the operation and maintenance management and control system of the comprehensive pipe rack directly obtains data and issues control commands through two optical fiber ring networks respectively, the optical fiber ring network configuration bearing the data provides IEC61850 protocol or IEC60870-5-104 protocol service, and the optical fiber ring network configuration bearing the video is directly connected with a network port of the camera video service through a PCI bus in a transparent mode.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages:
(1) the software and hardware platform of the regional control unit supports the redundant switching of the dual optical fiber Ethernet ports, two optical fiber Ethernet ports in the hardware architecture are used for realizing that a plurality of regional control units are connected in series to form an optical fiber ring network, so that the wiring workload caused by distributed acquisition can be reduced, the use of a concentrator and a repeater of an optical fiber can be reduced, and the requirement of maintaining normal communication after the fault of a certain section of optical fiber in the ring network can be met;
(2) the regional control unit is provided with an Ethernet port, a CAN port, an RS485 interface, an RS232 interface, an analog quantity acquisition interface, a digital quantity acquisition interface and a relay output interface, wherein the running application software supports message transmission of IEC61850, IEC60870-5-104, MODBUS and other protocols;
(3) the invention realizes the acquisition and the forwarding of distributed data based on a software and hardware platform, is integrated in a high-protection case, is suitable for severe operating environment, and provides effective guarantee for the safe operation of the comprehensive operation and maintenance management and control system of the pipe gallery.
Drawings
FIG. 1 is a diagram of the hardware architecture of the present invention;
FIG. 2 is a schematic diagram of the system of the present invention;
FIG. 3 is a schematic diagram of a zone control unit enclosure of the present invention;
fig. 4 is a partial cross-sectional view of the opening of the housing of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
As shown in fig. 1, the software and hardware platform of the area control unit supports redundant switching of dual-fiber ethernet ports. The two optical fiber Ethernet ports are used for realizing that a plurality of regional control units are connected in series to form an optical fiber ring network, so that the wiring workload caused by distributed acquisition can be reduced, the use of a concentrator and a repeater of the optical fiber can also be reduced, and meanwhile, the requirement of maintaining normal communication after a certain section of optical fiber in the ring network fails can be met.
The area control unit is provided with an Ethernet port, a CAN port, an RS485 interface, an RS232 interface, an analog quantity acquisition interface, a digital quantity acquisition interface and a relay output interface which are connected as shown in figure 2. The running application software supports message transmission of IEC61850, IEC60870-5-104, MODBUS and other protocols.
The software of the area control unit is based on the architecture of the comprehensive pipe gallery operation and maintenance management and control system, the modeling is carried out on the data information of the pipe gallery subsection, the model file uses a standard XML text file structure, can be modified by using a model editing tool matched with the comprehensive pipe gallery operation and maintenance management and control system, and can also be modified by using general XML editing software such as AltovaXMLSpy and the like; the corresponding relation between each interface data and the model is realized through software configuration, a relation table which is in one-to-one correspondence with self-described data in the model is expanded in a conventional relational database which is stored according to data types and sequences, and the direct data service access according to the model of IEC61850 protocol can be supported, and the direct data service access according to the model of IEC60870-5-104, MODBUS and other protocols can also be supported to access according to the data types and the sequences. And processing the interface data into several types of unified data according to different access protocols, respectively storing and refreshing the data according to the function types in the model, and providing a data service function for configured IEC61850, IEC60870-5-104, MODBUS and other forwarding protocols.
In order to reduce the modification of the IEC61850 protocol data model in actual use, the data capacity of the partition modeling is large, so that partially reserved unused content appears in the configuration. Through the screening configuration of the forwarding data, the data acquisition and forwarding efficiency can be improved, and the reserved unused content does not occupy the actual running system resources. In order to improve the efficiency of video service and reduce information conversion delay, the Ethernet port corresponding to the camera and the network port corresponding to the video ring network are configured into transparent transmission through a strategy, and are not mutually influenced with the data ring network.
The optical fiber ring network area control unit collects and collects the information of the pipe gallery area in a segmented mode and then transmits the information to the centralized control center. In the aspect of hardware, the PCI bus based on the ARM can flexibly configure the number of various interfaces according to the segmented requirements, so that the cost is saved, and meanwhile, the debugging workload is reduced. And the integrated dual-optical fiber ring network can ensure the transmission of large-flow video stream, meet the information interaction after the aggregation, and can not influence the normal communication when a single-point fault occurs in the ring network.
The software aspect is based on the distributed monitoring technology, different software configurations are adopted according to hardware configurations, a unified software configuration tool is matched with various protocol interfaces to support the great improvement of compatibility, each section can be independently debugged, and the ring network is different according to IP addresses, so that remote communication monitoring is facilitated.
As shown in fig. 2, which is a schematic diagram of the system of the present invention, the method for controlling the high-protection optical fiber ring network area includes:
step 1: each interface data is from sensors such as gas sensors, temperature and humidity sensors, infrared acousto-optic alarms and the like distributed in the pipe gallery subsection, equipment which does not support the access of a communication port is accessed into an analog quantity acquisition loop, a digital quantity acquisition loop and a relay control loop, and equipment which supports the access of the communication port is accessed into a corresponding communication port;
step 2: the acquisition loop, the control loop, the Ethernet port, the CAN port, the RS485 interface and the RS232 interface are concurrently accessed through the PCI bus based on the ARM architecture, and the access protocol processing software of the area control unit CAN complete acquisition and issuing of data of each interface through a bottom driver according to configuration;
and step 3: when the data processing service software of the area control unit is initialized, the data processing service software is analyzed after loading an IEC61850 protocol data model, data collected by the access protocol processing software is circularly processed during normal operation, and then different data structures are synchronously forwarded to an IEC61850 protocol, an IEC60870-5-104 protocol and other conversion protocols according to configuration.
And 4, step 4: the operation and maintenance management and control system of the comprehensive pipe rack directly obtains data and issues control commands through two optical fiber ring networks respectively, the optical fiber ring network configuration bearing the data provides IEC61850 protocol or IEC60870-5-104 protocol service, and the optical fiber ring network configuration bearing the video is directly connected with a network port of the camera video service through a PCI bus in a transparent mode.
As shown in fig. 3, the die casting aluminum alloy process is used to design the die, and the chassis is divided into an upper cover and a chassis for independent processing. The shell part of the case is integrally processed and formed at one time, and then holes are formed according to the actual application requirements. The open hole position is matched with and installed with a PG7 type waterproof connector and an aviation plug which meet high protection, and external wiring is led in and switched through the connector and the plug.
The integral sealing of the case adopts various modes comprehensively, the upper cover is provided with a groove, an O-shaped gasket is arranged in the groove, a convex strip of the case can be embedded into the groove, and a combined sealing mode of concave-convex surface occlusion and the O-shaped gasket is adopted between the upper cover and the case. The periphery of the upper cover and the shell cover is provided with corresponding screw holes, and six fastening screws are adopted for pressing. The PG7 waterproof joint and the aviation plug meeting high protection adopt a combined sealing mode of a threaded sleeve 5 and a gasket 4, the local section of the opening of the case is shown in figure 4, the hollow threaded sleeve 5 is matched with a flange plate 2 and fixed on a shell 3, a limiting bulge is arranged in the middle of the threaded sleeve 5, and the gasket 4 is arranged between the limiting bulge and the shell 3 for sealing; the wiring passes through the threaded sleeve 5 and the flange head 6, and sealing is guaranteed by the rubber ring 7 at the tail of the sleeve and the wiring attachment. The gasket 4 and the rubber ring 7 have the characteristic of deforming according to the pressure, and can effectively isolate water and gas outside the casing from the outside and the inside of the threaded sleeve respectively.
The model with a smaller diameter is selected according to actual needs, so that the leakage probability can be reduced. The upper cover of the case is additionally provided with crossed reinforcing ribs, so that the thickness and the weight can be reduced, and the integral mechanical strength can be ensured.
The wall-mounted mounting mode is improved while the protection capability is improved. The gourd-shaped mounting hanging hole is convenient for fixing the mounting screw firstly, then hanging and fastening the screw.
The whole die casting can reduce the process links of the production flow, and the PG7 joint and the aviation plug are adopted to facilitate the compatibility function expansion of the regional control unit.
Because the more hardware equipment in the machine case, the larger the space is, and the greater the difficulty of sealing protection is. In order to ensure reliable operation of components of the area control unit, all hardware devices need to be reasonably arranged in a limited internal space of the chassis. Fixed screw holes and local heat dissipation bases are reserved in the machine shell of the machine case for equipment installation, meanwhile, large-area heat dissipation grooves are reserved in the outer portion of the machine shell, and air outside the machine shell can be effectively dissipated by heating circulation after wall-hanging installation.
Claims (7)
1. A high protection optical fiber ring network area control unit is characterized by comprising a high protection case and an embedded CPU with an optical fiber ring network, wherein the embedded CPU is provided with a double optical fiber ring network in the high protection case and comprises a network interface connected with an Ethernet port, a CAN network port, an RS485 interface, an RS232 interface, an analog quantity acquisition interface, a digital quantity acquisition interface and a relay output interface, and supports message transmission comprising IEC61850, IEC60870-5-104 and MODBUS protocols; the dual-optical fiber ring network is used for large-flow video stream transmission and information interaction after aggregation, and is also used for communication of redundant switching during single-point failure in the ring network.
2. The high protection optical fiber ring network area control unit of claim 1, wherein the information of the pipe gallery area is collected and collected in sections and then transmitted to the centralized control center.
3. The high-protection optical fiber ring network area control unit of claim 2, wherein the information segment collection and collection comprises configuring the number of various interfaces according to the segment requirement based on an ARM-based PCI bus.
4. The high-protection optical fiber ring network area control unit according to claim 1, wherein the housing is divided into an upper cover and a housing, the upper cover is provided with a groove, an O-ring is disposed in the groove, a protruding strip of the housing can be inserted into the groove, and the upper cover and the housing are sealed by a combination of a concave-convex engagement and the O-ring.
5. The high protection optical fiber ring network zone control unit of claim 4, wherein the corresponding screw holes are arranged around the upper cover and the enclosure cover, and six fastening screws are adopted to press the cover.
6. The high protection optical fiber ring network area control unit according to claim 4 or 5, wherein said cabinet is provided with waterproof joint of PG7 type and aviation plug satisfying high protection, and the leading-in and switching-over of external wiring is performed through the joint and the plug; the connector and the plug are in a combined sealing mode of a hollow threaded sleeve (5) and a gasket (4), the threaded sleeve (5) is matched with the flange plate (2) and fixed on the shell (3), a limiting protrusion is arranged in the middle of the threaded sleeve (5), and the gasket (4) is arranged between the limiting protrusion and the shell (3) and used for sealing; the wiring passes through the threaded sleeve (5) and the flange head (6), the rubber ring (7) at the tail of the sleeve is attached to the wiring for sealing, and the gasket (4) and the rubber ring (7) have the characteristic of pressure deformation and are used for isolating water and gas outside the shell.
7. A method for controlling the high-protection optical fiber ring network area according to claim 1, comprising the steps of:
step 1: collecting data output by each sensor distributed in each pipe gallery subsection, wherein the data comprise a gas sensor, a temperature and humidity sensor and an infrared acousto-optic alarm sensor, equipment which does not support the access of a communication port is accessed into an analog quantity collection loop, a digital quantity collection loop and a relay control loop, and equipment which supports the access of the communication port is accessed into a corresponding communication port;
step 2: the system comprises an acquisition loop, a control loop, an Ethernet port, a CAN port, an RS485 interface and an RS232 interface, wherein the acquisition loop, the control loop, the Ethernet port, the CAN port, the RS485 interface and the RS232 interface are accessed through a PCI bus based on an ARM architecture, and an access protocol processing software of a regional control unit CAN complete acquisition of data of each interface and issue a control command through a bottom layer driver according to configuration;
and step 3: when the data processing service software of the area control unit is initialized, the data processing service software is analyzed after loading an IEC61850 protocol data model, data collected by the access protocol processing software is circularly processed in normal operation, then different data structures are synchronously forwarded according to configuration to give a roll-out protocol, and the roll-out protocol comprises an IEC61850 protocol and an IEC60870-5-104 protocol.
And 4, step 4: the operation and maintenance management and control system of the comprehensive pipe rack directly obtains data and issues control commands through two optical fiber ring networks respectively, the optical fiber ring network configuration bearing the data provides IEC61850 protocol or IEC60870-5-104 protocol service, and the optical fiber ring network configuration bearing the video is directly connected with a network port of the camera video service through a PCI bus in a transparent mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464211.2A CN112583473A (en) | 2020-12-14 | 2020-12-14 | High-protection optical fiber ring network area control unit and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464211.2A CN112583473A (en) | 2020-12-14 | 2020-12-14 | High-protection optical fiber ring network area control unit and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112583473A true CN112583473A (en) | 2021-03-30 |
Family
ID=75131789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011464211.2A Pending CN112583473A (en) | 2020-12-14 | 2020-12-14 | High-protection optical fiber ring network area control unit and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112583473A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079782A (en) * | 2007-06-27 | 2007-11-28 | 四川东方电气自动控制工程有限公司 | Wind site communication network using dual loop redundancy |
| CN102468641A (en) * | 2010-11-18 | 2012-05-23 | 郝丁霞 | Waterproof anti-explosion cable connector |
| CN202856759U (en) * | 2012-05-15 | 2013-04-03 | 深圳市中电电力技术股份有限公司 | Communication management unit based on integrated implementation of extensible markup language and dynamic library |
| CN104571062A (en) * | 2015-01-26 | 2015-04-29 | 杭州创博科技有限公司 | Town comprehensive pipe rack monitoring control and alarm system |
| CN105334769A (en) * | 2015-10-26 | 2016-02-17 | 辽宁达能电气股份有限公司 | Urban comprehensive pipe gallery comprehensive acquisition equipment and comprehensive acquisition system comprising same |
| CN205958972U (en) * | 2016-06-07 | 2017-02-15 | 南京中凯光电科技股份有限公司 | Intelligent case of integrated communication management and optical fiber ring communication becomes observing and controlling system |
| CN106843076A (en) * | 2017-03-24 | 2017-06-13 | 福建英格尔电气设备有限公司 | A kind of intelligent terminal for gathering and analyzing multiple sensors service data |
| CN106848723A (en) * | 2015-12-03 | 2017-06-13 | 上海航天科工电器研究院有限公司 | A kind of water-proof connector plug |
| CN206489411U (en) * | 2017-02-14 | 2017-09-12 | 青岛智慧城市产业发展有限公司 | A kind of area monitoring control device for underground pipe gallery |
| CN207082005U (en) * | 2017-07-25 | 2018-03-09 | 中国市政工程西北设计研究院有限公司 | A kind of region intelligent monitoring communicator applied to city integrated piping lane |
| CN107807571A (en) * | 2017-11-01 | 2018-03-16 | 无锡港湾网络科技有限公司 | Pipe gallery intelligent monitor system |
| CN108731730A (en) * | 2018-05-02 | 2018-11-02 | 北京四方继保自动化股份有限公司 | The configuration method of the gentle body insulated power circuit GIL status monitorings of tunnel piping lane |
| CN109211313A (en) * | 2018-08-22 | 2019-01-15 | 福建和盛高科技产业有限公司 | Electric power piping lane fire behavior based on Internet of Things monitors disposal system |
| CN210351175U (en) * | 2019-09-05 | 2020-04-17 | 江西省煤炭工业科学研究所 | General type integrated network monitoring station |
| CN111123858A (en) * | 2019-12-10 | 2020-05-08 | 南京理工大学 | Safety monitoring and information management system of comprehensive pipe rack |
-
2020
- 2020-12-14 CN CN202011464211.2A patent/CN112583473A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079782A (en) * | 2007-06-27 | 2007-11-28 | 四川东方电气自动控制工程有限公司 | Wind site communication network using dual loop redundancy |
| CN102468641A (en) * | 2010-11-18 | 2012-05-23 | 郝丁霞 | Waterproof anti-explosion cable connector |
| CN202856759U (en) * | 2012-05-15 | 2013-04-03 | 深圳市中电电力技术股份有限公司 | Communication management unit based on integrated implementation of extensible markup language and dynamic library |
| CN104571062A (en) * | 2015-01-26 | 2015-04-29 | 杭州创博科技有限公司 | Town comprehensive pipe rack monitoring control and alarm system |
| CN105334769A (en) * | 2015-10-26 | 2016-02-17 | 辽宁达能电气股份有限公司 | Urban comprehensive pipe gallery comprehensive acquisition equipment and comprehensive acquisition system comprising same |
| CN106848723A (en) * | 2015-12-03 | 2017-06-13 | 上海航天科工电器研究院有限公司 | A kind of water-proof connector plug |
| CN205958972U (en) * | 2016-06-07 | 2017-02-15 | 南京中凯光电科技股份有限公司 | Intelligent case of integrated communication management and optical fiber ring communication becomes observing and controlling system |
| CN206489411U (en) * | 2017-02-14 | 2017-09-12 | 青岛智慧城市产业发展有限公司 | A kind of area monitoring control device for underground pipe gallery |
| CN106843076A (en) * | 2017-03-24 | 2017-06-13 | 福建英格尔电气设备有限公司 | A kind of intelligent terminal for gathering and analyzing multiple sensors service data |
| CN207082005U (en) * | 2017-07-25 | 2018-03-09 | 中国市政工程西北设计研究院有限公司 | A kind of region intelligent monitoring communicator applied to city integrated piping lane |
| CN107807571A (en) * | 2017-11-01 | 2018-03-16 | 无锡港湾网络科技有限公司 | Pipe gallery intelligent monitor system |
| CN108731730A (en) * | 2018-05-02 | 2018-11-02 | 北京四方继保自动化股份有限公司 | The configuration method of the gentle body insulated power circuit GIL status monitorings of tunnel piping lane |
| CN109211313A (en) * | 2018-08-22 | 2019-01-15 | 福建和盛高科技产业有限公司 | Electric power piping lane fire behavior based on Internet of Things monitors disposal system |
| CN210351175U (en) * | 2019-09-05 | 2020-04-17 | 江西省煤炭工业科学研究所 | General type integrated network monitoring station |
| CN111123858A (en) * | 2019-12-10 | 2020-05-08 | 南京理工大学 | Safety monitoring and information management system of comprehensive pipe rack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208820537U (en) | A kind of box-type substation integrated information monitoring system based on Internet of Things | |
| CN112583473A (en) | High-protection optical fiber ring network area control unit and method | |
| CN207612365U (en) | Unattended field overhead line video monitoring apparatus | |
| CN211290371U (en) | Automatic isolating valve and device for water leakage of air conditioner in IDC machine room | |
| CN205231861U (en) | Station low voltage distribution system synthesizes and monitors integrated system | |
| CN205880552U (en) | But intelligent building control system's redundant controller | |
| CN2638129Y (en) | Mouse, keyboard and display exchanger used in machine group | |
| CN201749360U (en) | Energy system energy-saving management work station device | |
| CN202488213U (en) | Condition monitoring agency device and system for electric transmission line | |
| CN114137890A (en) | Device, remote IO module and method for realizing remote restart of offshore wind power equipment | |
| CN204652050U (en) | A kind of monitor network framework for marine wind electric field | |
| CN211291559U (en) | Transmission line synthesizes on-line monitoring device based on optical fiber looped netowrk communication | |
| CN207082005U (en) | A kind of region intelligent monitoring communicator applied to city integrated piping lane | |
| CN112433504A (en) | Combined type BACnet controller | |
| CN207115691U (en) | City integrated piping lane intelligent monitor system | |
| CN202736823U (en) | Waterproof sealing device of outdoor sulfur hexafluoride combination switch | |
| CN212851140U (en) | Intelligent monitoring system for fire-fighting emergency lighting of power plant | |
| CN210137391U (en) | Photovoltaic power supply intelligent security system based on 5g and NB-IOT technology | |
| CN209356914U (en) | A kind of line production system | |
| CN217335203U (en) | Intelligent auxiliary control system of transformer substation | |
| CN2913389Y (en) | Collocation structure of aluminium electrolysis gas purification control system | |
| CN216956746U (en) | Intelligent gateway equipment and remote monitoring system for power utilization site | |
| CN203909579U (en) | Building intelligent monitoring system | |
| ZhangM et al. | Research on intelligent construction of modular substation | |
| CN109582068A (en) | Looped network case micro-positive pressure fresh air dehumidifying system and its control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210330 |
|
| RJ01 | Rejection of invention patent application after publication |