CN105449861B - 基于iec61850的绝缘在线同步无线监测网关装置 - Google Patents
基于iec61850的绝缘在线同步无线监测网关装置 Download PDFInfo
- Publication number
- CN105449861B CN105449861B CN201510924170.3A CN201510924170A CN105449861B CN 105449861 B CN105449861 B CN 105449861B CN 201510924170 A CN201510924170 A CN 201510924170A CN 105449861 B CN105449861 B CN 105449861B
- Authority
- CN
- China
- Prior art keywords
- wireless
- iec61850
- ethernet
- distribution
- modules
- 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.)
- Active
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 16
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 14
- 239000004575 stone Substances 0.000 claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 230000003993 interaction Effects 0.000 claims abstract description 9
- ATHVAWFAEPLPPQ-VRDBWYNSSA-N 1-stearoyl-2-oleoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCC\C=C/CCCCCCCC ATHVAWFAEPLPPQ-VRDBWYNSSA-N 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims description 35
- 238000004891 communication Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
Classifications
-
- H02J13/0075—
-
- H02J13/0062—
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/16—Gateway arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
本发明涉及数字化变电站***与无线分布测控***之间的数据交互技术,具体是一种基于IEC61850的绝缘在线同步无线监测网关装置。本发明解决了目前尚无一种数字化变电站***与无线分布测控***之间的数据交互装置的问题。基于IEC61850的绝缘在线同步无线监测网关装置,其硬件资源包括SOPC芯片、以太网电口、以太网光口、GPS接口、nRF905模块;所述SOPC芯片采用AlteraCyclone V5CSXFC6DF31芯片,该芯片内部集成有ARM处理器硬核和FPGA芯片。本发明适用于电气设备的高精度绝缘性能监测。
Description
技术领域
本发明涉及数字化变电站***与无线分布测控***之间的数据交互技术,具体是一种基于IEC61850的绝缘在线同步无线监测网关装置。
背景技术
数字化变电站***是指由智能化一次设备(电子式互感器、智能化开关等)和网络化二次设备分层(过程层、间隔层、站控层)构建,建立在IEC61850标准和通信规范基础上,能够实现变电站内智能电气设备间信息共享和互操作的现代化变电站。无线分布测控***是指由多个无线监测终端通过无线信道组成的监测***,其广泛应用于电气设备(例如变压器、电流互感器、金属氧化物避雷器、电容型套管、耦合电容器等)的绝缘性能监测。在实际应用过程中,若要实现高精度的绝缘性能监测,则要求数字化变电站***与无线分布测控***之间进行无缝链接,以此实现数字化变电站***与无线分布测控***之间的数据交互,从而实现数字化变电站***对无线分布测控***的实时监控和调节。因此,若能发明一种数字化变电站***与无线分布测控***之间的数据交互装置,则能够实现高压电气设备的高精度绝缘性能监测。然而目前尚无这样一种装置。
发明内容
本发明为了解决目前尚无一种数字化变电站***与无线分布测控***之间的数据交互装置的问题,提供了一种基于IEC61850的绝缘在线同步无线监测网关装置。
本发明是采用如下技术方案实现的:基于IEC61850的绝缘在线同步无线监测网关装置,其硬件资源包括SOPC芯片、以太网电口、以太网光口、GPS接口、nRF905模块;
所述SOPC芯片采用AlteraCyclone V5CSXFC6DF31芯片,该芯片内部集成有ARM处理器硬核和FPGA芯片;
其中,以太网电口与ARM处理器硬核连接;以太网光口、GPS接口、nRF905模块均与FPGA芯片连接;FPGA芯片部分引脚预留为硬件联络线;FPGA芯片和ARM处理器硬核之间采用Cyclone V内部高速总线进行数据交互,如图1所示。
以太网电口与数字化变电站***的站控层连接;以太网光口与数字化变电站***的间隔层连接;nRF905模块通过无线信道与无线分布测控***的n个无线监测终端通信;GPS时钟与FPGA芯片预留的GPS接口连接,如图3所示。
具体工作过程包括:一、本装置通过以太网电口从数字化变电站***的站控层获取IEC61850 MMS格式的控制命令,并由ARM处理器硬核对控制命令进行解码,然后通过nRF905模块将控制命令发送至无线分布测控***的n个无线监测终端,由此实现站控层对无线分布测控***的命令控制。二、本装置通过nRF905模块接收来自n个无线监测终端的监测数据,并由ARM处理器硬核将监测数据编码为IEC61850 MMS格式的报文,然后通过以太网电口将报文发送至数字化变电站***的站控层,由此实现站控层对无线分布测控***的在线监测。三、本装置通过以太网光口从数字化变电站***的间隔层获取IEC61850 SMV(Sample Values)格式的报文,并由FPGA芯片对包含母线电气参数的报文进行解码,然后根据母线电气参数计算出母线实时频率,并通过nRF905模块将母线实时频率发送至无线分布测控***的n个无线监测终端,用于各个无线监测终端采样时钟的调节,由此实现高精度的绝缘在线测量。
在上述过程中,本装置在无线分布测控***中作为主站,n个无线监测终端在无线分布测控***中作为子站。本装置通过GPS接口接收来自GPS时钟的时钟信息,并利用nRF905模块的自动重发机制,可以实现主站对子站的授时、校时、时钟同步。无线信道既充当控制命令、监测数据、母线实时频率的传输信道,又充当授时命令、校时命令、时钟同步命令的传输信道。硬件联络线可以供不同的无线模块和FPGA芯片进行硬件信号联络。
基于上述过程,本发明所述的基于IEC61850的绝缘在线同步无线监测网关装置通过采用全新结构,实现了数字化变电站***与无线分布测控***之间的数据交互,由此实现了数字化变电站***对无线分布测控***的在线监测和控制,同时实现了电气设备的高精度绝缘性能测量。
本发明有效解决了目前尚无一种数字化变电站***与无线分布测控***之间的数据交互装置的问题,适用于电气设备的高精度绝缘性能监测。
附图说明
图1是本发明的结构示意图。
图2是本发明的FPGA芯片的内部结构示意图。
图3是本发明的工作原理参考图。
具体实施方式
基于IEC61850的绝缘在线同步无线监测网关装置,其硬件资源包括SOPC芯片、以太网电口、以太网光口、GPS接口、nRF905模块;
所述SOPC芯片采用AlteraCyclone V5CSXFC6DF31芯片,该芯片内部集成有ARM处理器硬核和FPGA芯片;
其中,以太网电口与ARM处理器硬核连接;以太网光口、GPS接口、nRF905模块均与FPGA芯片连接;FPGA芯片部分引脚预留为硬件联络线;FPGA芯片和ARM处理器硬核之间采用Cyclone V内部高速总线进行数据交互。
所述FPGA芯片中设计有三速以太网IP核、SPI总线IP核;三速以太网IP核外接KS8721BL PHY模块;KS8721BL PHY模块外接以太网光口;SPI总线IP核与nRF905模块的SPI总线连接;nRF905模块的CD状态线、AM状态线、DR状态线均与FPGA芯片预留的硬件联络线连接。
FPGA芯片中还设计有存储器、IEC61850 SMV协议报文解码IP核、NIOS CPU;NIOSCPU采用Avalon总线分别连接存储器、IEC61850 SMV协议报文解码IP核、三速以太网IP核,如图2所示。
以太网光口与数字化变电站***的间隔层连接;nRF905模块通过无线信道与无线分布测控***的各个无线监测终端通信;三速以太网IP核通过以太网光口从数字化变电站***的间隔层获取IEC61850 SMV格式的报文,并将报文放入三速以太网IP核的FIFO缓存;IEC61850 SMV协议报文解码IP核从三速以太网IP核的FIFO缓存中提取报文,并对包含母线电气参数的报文进行解码,由此获取母线电气信息,并根据母线电气参数计算出母线实时频率,然后将母线实时频率放入存储器,再由nRF905模块将母线实时频率发送至无线分布测控***的各个无线监测终端,用于各个无线监测终端采样时钟的调节,由此实现高精度的绝缘在线测量。
ARM处理器硬核外接KS8721BL PHY模块;KS8721BL PHY模块外接以太网电口。
以太网电口与数字化变电站***的站控层连接;nRF905模块通过无线信道与无线分布测控***的各个无线监测终端通信;ARM处理器硬核通过以太网电口从数字化变电站***的站控层获取IEC61850 MMS格式的控制命令,并对控制命令进行解码,然后通过Cyclone V内部高速总线将控制命令提交到FPGA芯片,再由nRF905模块将控制命令发送至无线分布测控***的各个无线监测终端,由此实现站控层对无线分布测控***的命令控制。
nRF905模块通过无线信道与无线分布测控***的各个无线监测终端通信;以太网电口与数字化变电站***的站控层连接;nRF905模块通过无线信道接收来自无线分布测控***的各个无线监测终端的监测数据,并通过Cyclone V内部高速总线将监测数据提交到ARM处理器硬核,然后由ARM处理器硬核将监测数据编码为IEC61850 MMS格式的报文,再由以太网电口将报文发送至数字化变电站***的站控层,由此实现站控层对无线分布测控***的在线监测。
具体实施时,NIOS CPU通过Avalon总线对存储器、IEC61850 SMV协议报文解码IP核、三速以太网IP核进行初始化设置。ARM处理器硬核采用嵌入式Linux操作***进行以太网协议解析并通过软件编程对MMS报文编码和解码。nRF905模块的CD状态线、AM状态线、DR状态线均与FPGA芯片预留的硬件联络线连接,使得FPGA芯片可以直接捕捉这些状态线的状态跳变,由此有利于保证主站对子站进行授时、校时、时钟同步时的实时性。
Claims (4)
1.一种基于IEC61850的绝缘在线同步无线监测网关装置,其特征在于:其硬件资源包括SOPC芯片、以太网电口、以太网光口、GPS接口、nRF905模块;
所述SOPC芯片采用AlteraCyclone V5CSXFC6DF31芯片,该芯片内部集成有ARM处理器硬核和FPGA芯片;
其中,以太网电口与ARM处理器硬核连接;以太网光口、GPS接口、nRF905模块均与FPGA芯片连接;FPGA芯片部分引脚预留为硬件联络线;FPGA芯片和ARM处理器硬核之间采用Cyclone V内部高速总线进行数据交互;
所述FPGA芯片中设计有三速以太网IP核、SPI总线IP核;三速以太网IP核外接KS8721BLPHY模块;KS8721BL PHY模块外接以太网光口;SPI总线IP核与nRF905模块的SPI总线连接;nRF905模块的CD状态线、AM状态线、DR状态线均与FPGA芯片预留的硬件联络线连接;
FPGA芯片中还设计有存储器、IEC61850 SMV协议报文解码IP核、NIOS CPU;NIOS CPU采用Avalon总线分别连接存储器、IEC61850 SMV协议报文解码IP核、三速以太网IP核;
以太网光口与数字化变电站***的间隔层连接;nRF905模块通过无线信道与无线分布测控***的各个无线监测终端通信;三速以太网IP核通过以太网光口从数字化变电站***的间隔层获取IEC61850 SMV格式的报文,并将报文放入三速以太网IP核的FIFO缓存;IEC61850 SMV协议报文解码IP核从三速以太网IP核的FIFO缓存中提取报文,并对包含母线电气参数的报文进行解码,由此获取母线电气信息,并根据母线电气参数计算出母线实时频率,然后将母线实时频率放入存储器,再由nRF905模块将母线实时频率发送至无线分布测控***的各个无线监测终端,用于各个无线监测终端采样时钟的调节,由此实现高精度的绝缘在线测量。
2.根据权利要求1所述的基于IEC61850的绝缘在线同步无线监测网关装置,其特征在于:ARM处理器硬核外接KS8721BL PHY模块;KS8721BL PHY模块外接以太网电口。
3.根据权利要求2所述的基于IEC61850的绝缘在线同步无线监测网关装置,其特征在于:以太网电口与数字化变电站***的站控层连接;nRF905模块通过无线信道与无线分布测控***的各个无线监测终端通信;ARM处理器硬核通过以太网电口从数字化变电站***的站控层获取IEC61850 MMS格式的控制命令,并对控制命令进行解码,然后通过Cyclone V内部高速总线将控制命令提交到FPGA芯片,再由nRF905模块将控制命令发送至无线分布测控***的各个无线监测终端,由此实现站控层对无线分布测控***的命令控制。
4.根据权利要求2所述的基于IEC61850的绝缘在线同步无线监测网关装置,其特征在于:nRF905模块通过无线信道与无线分布测控***的各个无线监测终端通信;以太网电口与数字化变电站***的站控层连接;nRF905模块通过无线信道接收来自无线分布测控***的各个无线监测终端的监测数据,并通过Cyclone V内部高速总线将监测数据提交到ARM处理器硬核,然后由ARM处理器硬核将监测数据编码为IEC61850 MMS格式的报文,再由以太网电口将报文发送至数字化变电站***的站控层,由此实现站控层对无线分布测控***的在线监测。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510924170.3A CN105449861B (zh) | 2015-12-14 | 2015-12-14 | 基于iec61850的绝缘在线同步无线监测网关装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510924170.3A CN105449861B (zh) | 2015-12-14 | 2015-12-14 | 基于iec61850的绝缘在线同步无线监测网关装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105449861A CN105449861A (zh) | 2016-03-30 |
CN105449861B true CN105449861B (zh) | 2017-12-01 |
Family
ID=55559766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510924170.3A Active CN105449861B (zh) | 2015-12-14 | 2015-12-14 | 基于iec61850的绝缘在线同步无线监测网关装置 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105449861B (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105869385A (zh) * | 2016-05-17 | 2016-08-17 | 华南理工大学 | 一种支持iec61850协议的电力***数据采集与传输片上*** |
CN106787170A (zh) * | 2016-11-28 | 2017-05-31 | 四川大学 | 一种基于数字站的瞬时负序分量时域实时提取方法及装置 |
CN106899498A (zh) * | 2017-04-13 | 2017-06-27 | 山东万腾电子科技有限公司 | 基于SoC的嵌入式工业智能网关及其实时数据采集方法 |
CN111262823B (zh) * | 2018-12-03 | 2022-04-15 | 郑州信大捷安信息技术股份有限公司 | 一种安全网关及其数据处理方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101795019A (zh) * | 2010-01-19 | 2010-08-04 | 东南大学 | 基于软核的光电电流互感器合并单元 |
CN102288819A (zh) * | 2011-08-18 | 2011-12-21 | 东北大学 | 一种基于fpga的电力谐波分析仪 |
CN103259334A (zh) * | 2013-03-30 | 2013-08-21 | 国家电网公司 | 变电站三态综合测控装置 |
-
2015
- 2015-12-14 CN CN201510924170.3A patent/CN105449861B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101795019A (zh) * | 2010-01-19 | 2010-08-04 | 东南大学 | 基于软核的光电电流互感器合并单元 |
CN102288819A (zh) * | 2011-08-18 | 2011-12-21 | 东北大学 | 一种基于fpga的电力谐波分析仪 |
CN103259334A (zh) * | 2013-03-30 | 2013-08-21 | 国家电网公司 | 变电站三态综合测控装置 |
Non-Patent Citations (1)
Title |
---|
数字变电站IEC61850-GOOSE报文解码器的FPGA实现;颜文 等;《现代电力技术》;20150915;第38卷(第18期);151-154 * |
Also Published As
Publication number | Publication date |
---|---|
CN105449861A (zh) | 2016-03-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105449861B (zh) | 基于iec61850的绝缘在线同步无线监测网关装置 | |
CN105023416B (zh) | 基于电力线载波和微功率无线的智能集抄*** | |
CN102710024A (zh) | 基于IPv6的输变电设备在线监测*** | |
US20140292532A1 (en) | Device, and associated method, for communication | |
CN206559386U (zh) | 基于SoC的嵌入式工业智能网关及物联网数据采集监控*** | |
CN201656491U (zh) | 一种智能电力调功器 | |
CN105656591A (zh) | 在伺服***中的串行编码器通信时数据采集同步的方法 | |
CN103384090A (zh) | 变电站无线辅助监测*** | |
CN205404700U (zh) | 带时间基准输出的多功能fpga采集单元 | |
CN206878869U (zh) | 一种工业以太网‑can转换器 | |
CN206038750U (zh) | 一种电网参数的异构无线传感器采集装置 | |
CN102081383B (zh) | 一种用于现场控制的安全网络协议的装置和方法 | |
CN202817898U (zh) | 一种基于EtherCAT工业以太网的配电终端 | |
CN205142256U (zh) | 一种epa总线与hart总线通讯网桥 | |
CN104157123A (zh) | 一种智能负荷监控*** | |
CN210780850U (zh) | 一种物联网射频控制智能网关 | |
CN204578681U (zh) | 基于多模式通信的远程指挥*** | |
CN208754316U (zh) | 一种智能配电组网***的网关装置 | |
CN211147878U (zh) | 一种开关柜电缆接头无线测温装置 | |
CN204045003U (zh) | 电力母线测温无线传输装置 | |
CN207826260U (zh) | 基于图像识别的无缝钢轨温度位移检测装置 | |
CN105487441A (zh) | 变电站避雷器数据同步采集传输装置及其控制方法 | |
CN206993155U (zh) | 一种变频器远程监控*** | |
CN101511027A (zh) | 基于3g的抽油机远程监测装置 | |
CN103200210B (zh) | 基于高级数据链路控制的数字量输入装置和方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |