WO2017092096A1 - 基于nfc的智能电网终端即插即用接入配电监控网方法 - Google Patents
基于nfc的智能电网终端即插即用接入配电监控网方法 Download PDFInfo
- Publication number
- WO2017092096A1 WO2017092096A1 PCT/CN2015/098730 CN2015098730W WO2017092096A1 WO 2017092096 A1 WO2017092096 A1 WO 2017092096A1 CN 2015098730 W CN2015098730 W CN 2015098730W WO 2017092096 A1 WO2017092096 A1 WO 2017092096A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- terminal
- access point
- teds
- nfc
- monitoring network
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
-
- 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
- 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
Definitions
- the invention belongs to the field of plug-and-play of smart grid terminals, and relates to NFC technology, in particular to a method for plug-and-play access distribution monitoring network based on NFC for smart grid terminals.
- the power grid and the information network are closely integrated and have two-way mobility, laying the foundation for the formation of highly automated and widely distributed energy exchange.
- the smart grid is developing in a distributed direction.
- the microgrid with on-chip information collection and inter-chip information exchange becomes the core of smart grid development, while the terminals in the micro-network, especially the distributed power supply, need to communicate smoothly.
- Technology and power technology are jointly guaranteed.
- the communication monitoring system of the power network can monitor the voltage and power of the distributed power access process, adjust its active output and reactive power, which is beneficial to the smooth and stable process.
- Smart grid terminal plug-and-play access distribution monitoring network is the trend of smart grid development in the future.
- wireless smart sensor plug-and-play technology is mainly based on the IEEE 1451 standard, through standard wireless interfaces such as IEEE 802.11, Bluetooth, ZigBee and 6LoWPAN. Communication.
- the above wireless interface is mainly allocated to different frequency channels of the sensor, and the device information is standardized to form the TEDS of the device, thereby realizing automatic identification and identification of the device, and achieving the effect of plug and play of the sensor.
- the number of terminals represented by the smart meter in the communication technology mainly includes a large number of terminals, and the number of channels allocated only by frequency is limited. Unable to meet smart grid terminal requirements. In addition, since the wireless interfaces are exposed to the open space, there are major security risks.
- the present invention is directed to the current situation that the wireless smart sensor plug-and-play technology cannot meet the requirements of the smart grid terminal, and proposes a wireless plug-and-play method based on the NFC technology point-to-point mode, which can provide sufficient wireless access to the smart grid terminal.
- Interface, plug and play process is simple, access speed is fast.
- the technical solution of the present invention is as follows:
- a NFC-based smart grid terminal plug-and-play access distribution monitoring network method adopts NFC point-to-point communication mode to design smart grid terminals.
- Terminal types include smart meters, photovoltaic power generation systems, energy storage systems, and cogeneration systems.
- Systems, fuel cells, and electric vehicle charging systems use a periodic association matching mechanism to establish a sensor electronic data sheet TEDS for automatic identification and identification of smart grid terminals, including the following:
- the monitoring network access point and the terminal are respectively equipped with NFC tags, and when not connected, they are all in the Target state in the NFC point-to-point mode;
- the terminal When the terminal prepares to access the monitoring network access point, triggers access to the monitoring network application; the terminal detects the surrounding NFC radio field, and if other NFC radio fields are detected, repeats the radio field collision detection; otherwise, the terminal's NFC module Switch to the Initiator state in active mode;
- the terminal selects its global unique identifier UUID as the near field communication identifier NFCID3 content, and identifies the unique communication channel with the NFC module of the monitoring network access point; the monitoring network access point loads the terminal's Meta-TEDS, TransducerChannel TEDS and PHY TEDS; Meta-TEDS mainly includes UUID and terminal type; TransducerChannel TEDS mainly includes maximum data rate, response waiting time, maximum number of retransmissions, minimum transmission delay, and data transmission period; PHY TEDS mainly includes transmission data format, physical unit, and measurement range;
- the access point saves the terminal network configuration parameters, and starts the periodic association matching mechanism; the terminal sends the monitoring system status and measurement data, or the terminal receives the monitoring network to change the terminal status instruction; sets tc as the association period, ts is the handshake time limit, and ti is the maximum When the time limit is re-accessed, the periodic association matching mechanism is as follows:
- each NFC data frame and control frame includes an NFCID3 field, that is, both contain the UUID of the terminal, according to which The UUID can determine whether the terminal and the access point can communicate normally;
- both the terminal and the access point switch to the Target state, and the access point sends an associated handshake frame to the terminal every tc period. If the terminal replies with the associated handshake frame within the ts time, the terminal connects with the access point. Normally; otherwise, after the ts exceeds ts, the access point sends the associated handshake frame again. If the cumulative transmission fails for a limited number of times, it is determined that the terminal disconnects from the access point and recovers its network resources;
- the terminal In the case that the terminal is powered off or temporarily removed from the access point, if the terminal requests to access the power distribution monitoring network again within less than ti time, it is no longer necessary to reload the TEDS of the terminal, directly according to the UUID of the terminal at the access point.
- the stored parameters are directly searched for resource configuration; if the ti is accessed again, it needs to be reloaded; after the access point disconnects from the terminal for more than ti, the UUID, TEDS and other information of the terminal are cleared.
- the wireless plug and play channel is uniquely identified by the terminal's UUID, and the number of channels is greatly increased compared to the frequency-divided communication channel.
- the access point density limit value is large.
- the density of the access point is determined by the spacing of the NFC tags. Since the NFC technology does not interfere with the electromagnetic waves between the tags at a distance greater than 25 cm, the NFC tags can be placed at a short distance, thereby increasing the density of the access points.
- the periodic association matching mechanism can reduce the communication power consumption of the access point and the terminal. Since the periodic association matching mechanism is adopted, the access point and the terminal can switch to the Target state during the idle period and without transmitting the handshake frame/reply handshake frame to save power consumption.
- the terminal re-accesses in a short time after an unexpected power failure restart and temporary removal of the access point, and the periodic association matching mechanism can ensure fast access.
- the present invention defines the contents of Meta-TEDS and Transducer Channel TEDS for smart grid terminals in accordance with the IEEE 1451.5 standard, namely, Wireless Communication Protocols and Transducer Electronic Data Sheets (TEDS) Formats.
- the TEDS defined in the IEEE 1451.5 standard is simplified, and the contents of the unique attributes of the smart grid terminal are specifically given.
- the contents of the tables are first given below.
- phase frequency 4 bytes 4 bytes 4 bytes
- Table 1 is the Meta-TEDS content table of the terminal, which defines the basic content of the smart grid terminal for registering the smart terminal.
- the UUID of the monitoring module including the smart grid terminal generates a unique identifier through the latitude and longitude of the production module of the smart grid terminal, thereby ensuring the uniqueness of the UUID.
- the terminal type field is used to register the type of the terminal, as defined in Table 4.
- the overall TEDS checksum is the checksum of all Meta-TEDS content and is used to verify that the contents of the field during the transfer are incorrect.
- Table 2 is the TransducerChannel TEDS content table of the terminal.
- the data transmission rate field refers to the data transmission rate of the smart grid terminal during communication. The rate can be selected to be 106kpbs, 212kpbs or 424kpbs.
- the response waiting time field refers to the longest response waiting time after a data packet is sent. When it is exceeded, the retransmission mechanism is started, and the unit is millisecond.
- the maximum number of retransmissions refers to the maximum number of retransmissions after each packet is retransmitted.
- the minimum transmission delay is the minimum delay time in milliseconds for a single packet during transmission.
- the data transmission period refers to the interval between two adjacent data transmissions, in milliseconds.
- the transmitter channel TEDS checksum is the checksum of all contents of TransducerChannelTEDS and is used to verify that the contents of the field during transmission are incorrect.
- Table 3 shows the PHY TEDS of the terminal, which defines the data transmission related fields.
- the measurement data transmitted by different terminal types is different.
- the transmission format of each data is defined by the transmission data format.
- the specific definition is shown in Table 5.
- the physical unit is determined by the physical unit field.
- the definition of physical units is consistent with the IEEE 1451.2 standard.
- the Measurement Range field defines the range in which data is transferred, as determined by the physical unit and physical unit fields.
- the physical TEDS checksum is the checksum of all contents of the PHY TEDS and is used to verify that the contents of the field during the transmission are incorrect.
- Table 4 is a terminal type enumeration quantity definition table, which defines key values corresponding to different types of terminals.
- Terminal types include smart meters, photovoltaic systems, energy storage systems, cogeneration systems, fuel cells, electric vehicle charging systems
- Table 5 is a transport data format enumeration definition table that defines key values corresponding to different transport data formats.
- the transmission data format includes smart meter power data format, smart meter current data format, smart meter voltage data format, smart meter phase angle data format, smart meter frequency data format, DER power data format, DER current data format, DER voltage data format, DER phase angle data format, DER frequency data format, DER mode data format.
- the definitions of smart meter power, current, voltage, phase angle and frequency are shown in Table 6-10, while DER power, current, voltage, phase angle and frequency are defined in the same way as smart meters, not listed one by one.
- the DER mode data format is specifically defined with reference to Table 11.
- Table 6 is the smart meter power data format.
- Table 7 is the smart meter current data format.
- Table 8 is the smart meter voltage data format.
- Table 9 is the smart meter phase angle data format.
- Table 10 is the smart meter frequency data format.
- Table 11 is the DER mode data format.
- the access point and the terminal in the present invention need to have an NFC tag module on the physical hardware, wherein the terminal is mainly divided into two types, one is a smart meter with simple function, and the other is a distributed distributed energy of the monitoring system (Distributed) Energy Resource, DER) system.
- DER intelligent monitoring terminals are mainly divided into the following categories: photovoltaic power generation systems, energy storage systems, cogeneration systems, fuel cells and electric vehicle charging systems.
- the terminal is connected to the power distribution monitoring network by attaching the NFC tag on the terminal to the NFC tag on the access point.
- the terminal uses its UUID to uniquely identify the communication channel, and by loading its TEDS, the access point automatically identifies and identifies the terminal class.
- the periodic association mechanism is enabled to maintain the communication between the terminal in the data transmission phase and the idle phase, and ensure that the terminal quickly accesses again in a short time due to an unexpected power failure restart or temporary removal.
- the monitoring network access point and the terminal are respectively equipped with NFC radio interfaces, start initialization, select the active mode and the transmission speed is 106kpbs or 212kpbs or 424kpbs, switch to the Target state, and the access point waits for the terminal to initiate an access request.
- the terminal Before the terminal accesses, it should align its own NFC tag with the NFC tag of the access point, keep the distance within 10cm, and press the physical button of the external control access of the terminal to trigger the access monitoring network application.
- the terminal switches to the Initiator state.
- the terminal fills the NFCID3 field with its own UUID and tests the current external RF field. If other RF fields are detected, the RF field is not activated. If there is no one. When the external RF field is detected, it activates its own RF field, which in turn activates the Target's Target tag.
- the terminal uses NFCID3 to pair with the monitoring network access point to identify a unique communication channel.
- Meta-TEDS overall TEDS, see Table 1
- TransducerChannel TEDS Transformer Channel TEDS, see Table 2)
- PHY TEDS Physical TEDS, see Table 3
- the monitoring channel starts, the terminal sends the monitoring module status and measurement data, or the terminal receives the monitoring network to change the terminal status command.
- the periodic association matching mechanism is described in detail as follows, where tc refers to the association period, ts refers to the handshake time limit, and ti refers to the maximum re-access time limit.
- each NFC data frame and control frame includes an NFCID3 field, that is, both contain the UUID of the terminal, according to which The UUID can determine whether the terminal and the access point can communicate normally.
- both the terminal and the access point switch to the Target state, and the access point sends an associated handshake frame to the terminal every tc period. If the terminal replies with the associated handshake frame within the ts time, the terminal connects with the access point. Normally; otherwise, after the ts exceeds ts, the access point sends the associated handshake frame again. If the cumulative transmission fails, the terminal is disconnected from the access point and the network resources are recovered.
- the terminal In the case that the terminal is powered off or temporarily removed from the access point, if the terminal requests to access the power distribution monitoring network again within less than ti time, it is no longer necessary to reload the TEDS of the terminal, directly according to the UUID of the terminal at the access point.
- the stored parameters are directly searched for resource configuration; if ti is accessed again, it needs to be reloaded. After the access point disconnects from the terminal for more than ti, the UUID, TEDS and other information of the terminal are cleared.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
本发明涉及一种基于NFC的智能电网终端即插即用接入配电监控网方法，包括：1)监控网接入点与终端分别都配备NFC标签，在未连接时，均处于NFC点对点模式中的Target状态；2)在终端准备接入监控网接入点时，触发接入监控网应用；3)终端选用其全球唯一标识UUID作为近场通信标识NFCID3内容，与监控网接入点的NFC模块标识唯一通信信道；监控网接入点载入终端的Meta-TEDS、Transducer Channel TEDS及PHY TEDS；4)接入点保存终端网络配置参数，开启定期关联匹配机制。本发明可以提供给智能电网终端足够的无线接入接口，即插即用过程简单、接入速度快。
Description
本发明属于智能电网终端即插即用领域，涉及了NFC技术，尤其涉及了一种基于NFC的智能电网终端即插即用接入配电监控网络方法。
随着信息技术和传感器技术的不断发展，传统的电力网与信息网不断融合，逐渐形成以能源合理交换为最终目的的智能电网。电力网和信息网紧密结合，具有双向流动性，为形成高度自动化和广泛分布的能量交换奠定基础。智能电网朝着分布式方向发展，具有片内信息采集和片间信息交流的微网成为智能电网发展的核心，而微网中的终端，尤其是分布式电源平稳接入配电网尤其需要通信技术和电力技术共同保证。电力网的通信监控系统可以对分布式电源接入过程的电压和电力进行监控，调整其有功出力和无功出力，有利于整个过程平滑稳定。
智能电网终端即插即用接入配电监控网是未来智能电网发展的趋势，目前无线智能传感器即插即用技术主要依据IEEE 1451标准，通过标准无线接口如IEEE 802.11,Bluetooth,ZigBee及6LoWPAN等通信。以上无线接口主要是分配给传感器不同的频率信道，将设备信息进行标准化处理，形成设备的TEDS，从而实现自动识别和标识设备，达到传感器即插即用的效果。
目前智能电网终端即插即用接入配电监控网存在一些难题，其中在通信技术方面的主要包括以智能电表为代表的终端数量较多且较密集，仅依靠频率来分配的信道数量有限，无法满足智能电网终端需求。另外，由于无线接口都暴露在开放空间中，存在着较大的安全隐患。
发明内容
本发明针对现有的无线智能传感器即插即用技术无法满足智能电网终端需求的现状，提出一种基于NFC技术点对点模式的无线即插即用方法，可以提供给智能电网终端足够的无线接入接口，即插即用过程简单、接入速度快。本发明的技术方案如下：
一种基于NFC的智能电网终端即插即用接入配电监控网方法，采用NFC点对点通信模式，设计智能电网终端，终端类型包括智能电表、光伏发电系统、储能系统、冷热电联供系统、燃料电池以及电动汽车充电系统，采用定期关联匹配机制建立用于自动识别和标识智能电网终端的传感器电子数据表TEDS，包括下列几个方面：
1)监控网接入点与终端分别都配备NFC标签，在未连接时，均处于NFC点对点模式中的Target状态；
2)在终端准备接入监控网接入点时，触发接入监控网应用；终端检测周围NFC无线电场，若检测到其他NFC无线电场，则重复无线电场碰撞检测；否则，将终端的NFC模块切换为主动模式下的Initiator状态；
3)终端选用其全球唯一标识UUID作为近场通信标识NFCID3内容，与监控网接入点的NFC模块标识唯一通信信道；监控网接入点载入终端的Meta-TEDS、TransducerChannel TEDS及PHY TEDS；Meta-TEDS主要包括UUID、终端类型；TransducerChannel TEDS主要包括最大数据率、响应等待时间、最大重传次数、最小传输延迟、数据传输周期；PHY TEDS主要包括传输数据格式、物理单位、测量范围；
4)接入点保存终端网络配置参数，开启定期关联匹配机制；终端发送监控系统状态和测量数据，或终端接收监控网更改终端状态指令；设tc是关联周期，ts是握手时限，ti是最大重新接入时限，则定期关联匹配机制如下：
A.在数据传输或监测控制的情况中，终端与接入点保持着数据帧和控制帧传输，每个NFC数据帧和控制帧中都包含NFCID3字段，也就是都包含终端的UUID，根据此UUID即可判断终端与接入点是否可以正常通信；
B.在空闲情况中，终端与接入点都切换至Target状态，接入点每隔tc周期向终端发送关联握手帧，若终端在ts时间内回复关联握手帧，则终端与接入点连接正常；否则，超过ts后接入点再次发送关联握手帧，若累计发送有限次均失败，则判断终端与接入点断开，回收其网络资源；
C.在终端掉电或临时移出接入点情况中，若终端在小于ti时间内再次请求接入配电监控网络，则无需再重新载入终端的TEDS，直接根据终端的UUID在接入点存储的参数中直接查找，进行资源配置；若超出ti再次接入，则需重新载入；接入点在与终端断开超过ti时间后，清除存储该终端的UUID、TEDS及其他信息。
本发明具有以下优点：
1)无线即插即用信道数量多。在本方法中，无线即插即用信道是由终端的UUID唯一标识的，与依据频率区分通信信道相比，信道数量大大增加。
2)在一定的物理空间内，接入点密度极限值较大。决定接入点密度的是NFC标签设置的间距，由于NFC技术在大于25cm距离外就无标签间电磁波互相干扰，因此可以相距较短距离放置NFC标签，从而提高接入点密度。
3)定期关联匹配机制可以降低接入点和终端的通信功耗。由于采用定期关联匹配机制，接入点和终端在空闲期和不需传送握手帧/回复握手帧时，均可以切换至Target状态，来节省功耗。
4)终端在出现意外掉电重启和临时移出接入点后短时间内再次接入，定期关联匹配机制可以保证快速接入。
本发明参照IEEE 1451.5标准，即无线通信与变送器电子数据表格(Wireless Communication Protocols and Transducer Electronic Data Sheets(TEDS)Formats)定义了适用于智能电网终端的Meta-TEDS和Transducer Channel TEDS的内容。将IEEE 1451.5标准中定义的TEDS进行简化，并具体给出智能电网终端特有属性内容，下面首先给出各表内容。
表1 终端的Meta-TEDS内容表
表2 终端的TransducerChannel TEDS内容表
表3 终端的PHY TEDS内容
表4 终端类型枚举量定义表
| 键值 | 定义 |
| 0 | 无效 |
| 1 | 智能电表 |
| 2 | 光伏发电系统 |
| 3 | 储能系统 |
| 4 | 冷热电联供系统 |
| 5 | 燃料电池 |
| 6 | 电动汽车充电系统 |
| 7-255 | 保留 |
表5 传输数据格式枚举量
| 键值 | 定义 |
| 0 | 无效 |
| 1 | 智能电表功率数据格式 |
| 2 | 智能电表电流数据格式 |
| 3 | 智能电表电压数据格式 |
| 4 | 智能电表相角数据格式 |
| 5 | 智能电表频率数据格式 |
| 6 | DER功率数据格式 |
| 7 | DER电流数据格式 |
| 8 | DER电压数据格式 |
| 9 | DER相角数据格式 |
| 10 | DER频率数据格式 |
| 11 | DER模式数据格式 |
| 11-255 | 保留 |
表6 智能电表功率数据格式
表7 智能电表电流数据格式
| X相电流 | Y相电流 | Z相电流 |
| 4字节 | 4字节 | 4字节 |
表8 智能电表电压数据格式
| X相电压 | Y相电压 | Z相电压 |
| 4字节 | 4字节 | 4字节 |
表9 智能电表相角数据格式
| X相相角 | Y相相角 | Z相相角 |
| 4字节 | 4字节 | 4字节 |
表10 智能电表频率数据格式
| X相频率 | Y相频率 | Z相频率 |
| 4字节 | 4字节 | 4字节 |
表11 DER模式数据格式
首先对上述各表进行说明。
表1是终端的Meta-TEDS内容表，定义了智能电网终端的基本内容，用于注册智能终端。包括智能电网终端的监控模块的UUID，通过智能电网终端的监控模块生产地点经纬度、时间来生成唯一的标识符，从而保证其UUID的唯一性。终端类型字段是用来注册该终端属于何种类型，具体定义见表4。总体TEDS校验和是Meta-TEDS所有内容的校验和，用来检验传输过程中字段内容是否有误。
表2是终端的TransducerChannel TEDS内容表。数据传输速率字段是指智能电网终端在通信过程中数据传输速率，可以选择的速率为106kpbs，212kpbs或424kpbs。响应等待时间字段是指一个数据包发送后最长响应等待时间，超出后则启动重传机制，其单位为毫秒。最大重传次数是指对于每个数据包出发重传机制后重传的最多次数。最小传输延迟是指单个数据包在传输过程中的最小延迟时间，单位为毫秒。数据传输周期是指相邻两次传输数据的间隔时间，单位为毫秒。变送器通道TEDS校验和是TransducerChannelTEDS所有内容的校验和，用来检验传输过程中字段内容是否有误。
表3是终端的PHY TEDS，定义了数据传输相关字段。不同的终端类型会传输的测量数据不同，每种数据的传输格式由传输数据格式定义，具体定义见表5，其物理单位由物理单位字段决定。物理单位的定义与IEEE 1451.2标准一致。测量范围字段定义了传输数据的范围，其物理单位与物理单位字段决定。物理TEDS校验和是PHY TEDS所有内容的校验和，用来检验传输过程中字段内容是否有误。
表4是终端类型枚举量定义表，定义了不同类型终端对应的键值。终端类型包括智能电表、光伏发电系统、储能系统、冷热电联供系统、燃料电池、电动汽车充电系统
表5是传输数据格式枚举量定义表，定义了不同传输数据格式对应的键值。传输数据格式包括智能电表功率数据格式、智能电表电流数据格式、智能电表电压数据格式、智能电表相角数据格式、智能电表频率数据格式、DER功率数据格式、DER电流数据格式、DER电压数据格式、DER相角数据格式、DER频率数据格式、DER模式数据格式。其中智能电表功率、电流、电压、相角及频率具体定义参照表6-10，而DER功率、电流、电压、相角及频率具体定义于智能电表类似，不一一罗列。DER模式数据格式具体定义参照表11。
表6是智能电表功率数据格式。
表7是智能电表电流数据格式。
表8是智能电表电压数据格式。
表9是智能电表相角数据格式。
表10是智能电表频率数据格式。
表11是DER模式数据格式。
具体实施步骤如下所示。
本发明中的接入点和终端在物理硬件上都需要具备NFC标签模块，其中终端主要分为两种，一种是功能简单的智能电表，另一种是监控系统复杂的分布式能源(Distributed Energy Resource,DER)系统。DER智能监控终端主要分为以下几类：光伏发电系统、储能系统、冷热电联供系统、燃料电池以及电动车充电系统。需要通过将终端上的NFC标签贴近接入点上的NFC标签，完成终端接入配电监控网。
在接入过程中，终端用其UUID来唯一标识通信信道，通过载入其TEDS，来使接入点自动识别和标识终端类别。在终端接入后，开启定期关联机制，可以维持终端在数据传输阶段、空闲阶段的通信，保证终端因意外情况掉电重启或临时移除等情况在短时间内再次快速接入。具体步骤如下：
1)监控网接入点与终端分别都配备NFC无线接口，开始初始化，选择主动模式以及传输速度为106kpbs或212kpbs或424kpbs，切换至Target状态，接入点等待终端发起接入请求。
2)终端在接入前，应将自身的NFC标签与接入点NFC标签对齐贴放好，距离保持在10cm以内，按下终端外部控制接入的物理按键，触发接入监控网应用。终端切换为Initiator状态，终端以自己的UUID填充NFCID3字段，测试当前外部RF场，如果检测到其他RF场，则不激活自己的RF场，如果没有一个
外部RF场被检测到，则激活自己的RF场，进而激活接入点的Target标签。
3)终端用NFCID3与监控网接入点进行配对，从而标识唯一通信信道。载入终端的Meta-TEDS(总体TEDS，见表1)、TransducerChannel TEDS(变送器通道TEDS见表2)以及PHY TEDS(物理TEDS，见表3)，来标识接入的终端的种类和测量数据格式。
4)保存终端的UUID和TEDS，并开启定期关联匹配机制。监控通道启动，终端发送监控模块状态和测量数据，或终端接收监控网更改终端状态指令。定期关联匹配机制详细说明如下，其中tc指的是关联周期，ts指的是握手时限，ti指的是最大重新接入时限。
A.在数据传输或监测控制的情况中，终端与接入点保持着数据帧和控制帧传输，每个NFC数据帧和控制帧中都包含NFCID3字段，也就是都包含终端的UUID，根据此UUID即可判断终端与接入点是否可以正常通信。
B.在空闲情况中，终端与接入点都切换至Target状态，接入点每隔tc周期向终端发送关联握手帧，若终端在ts时间内回复关联握手帧，则终端与接入点连接正常；否则，超过ts后接入点再次发送关联握手帧，若累计发送3次均失败，则判断终端与接入点断开，回收其网络资源。
C.在终端掉电或临时移出接入点情况中，若终端在小于ti时间内再次请求接入配电监控网络，则无需再重新载入终端的TEDS，直接根据终端的UUID在接入点存储的参数中直接查找，进行资源配置；若超出ti再次接入，则需重新载入。接入点在与终端断开超过ti时间后，清除存储该终端的UUID、TEDS及其他信息。
Claims (1)
- 一种基于NFC的智能电网终端即插即用接入配电监控网方法，采用NFC点对点通信模式，设计智能电网终端，终端类型包括智能电表、光伏发电系统、储能系统、冷热电联供系统、燃料电池以及电动汽车充电系统，采用定期关联匹配机制建立用于自动识别和标识智能电网终端的传感器电子数据表TEDS，包括下列几个方面：1)监控网接入点与终端分别都配备NFC标签，在未连接时，均处于NFC点对点模式中的Target状态；2)在终端准备接入监控网接入点时，触发接入监控网应用；终端检测周围NFC无线电场，若检测到其他NFC无线电场，则重复无线电场碰撞检测；否则，将终端的NFC模块切换为主动模式下的Initiator状态；3)终端选用其全球唯一标识UUID作为近场通信标识NFCID3内容，与监控网接入点的NFC模块标识唯一通信信道；监控网接入点载入终端的Meta-TEDS、Transducer Channel TEDS及PHY TEDS；Meta-TEDS主要包括UUID、终端类型；Transducer Channel TEDS主要包括最大数据率、响应等待时间、最大重传次数、最小传输延迟、数据传输周期；PHY TEDS主要包括传输数据格式、物理单位、测量范围；4)接入点保存终端网络配置参数，开启定期关联匹配机制；终端发送监控系统状态和测量数据，或终端接收监控网更改终端状态指令；设tc是关联周期，ts是握手时限，ti是最大重新接入时限，则定期关联匹配机制如下：A.在数据传输或监测控制的情况中，终端与接入点保持着数据帧和控制帧传输，每个NFC数据帧和控制帧中都包含NFCID3字段，也就是都包含终端的UUID，根据此UUID即可判断终端与接入点是否可以正常通信；B.在空闲情况中，终端与接入点都切换至Target状态，接入点每隔tc周期向终端发送关联握手帧，若终端在ts时间内回复关联握手帧，则终端与接入点连接正常；否则，超过ts后接入点再次发送关联握手帧，若累计发送有限次均失败，则判断终端与接入点断开，回收其网络资源；C.在终端掉电或临时移出接入点情况中，若终端在小于ti时间内再次请求接入配电监控网络，则无需再重新载入终端的TEDS，直接根据终端的UUID在接入点存储的参数中直接查找，进行资源配置；若超出ti再次接入，则需重新载入；接入点在与终端断开超过ti时间后，清除存储该终端的UUID、TEDS及其他信息。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510882618.XA CN105576826A (zh) | 2015-12-03 | 2015-12-03 | 基于nfc的智能电网终端即插即用接入配电监控网方法 |
| CN201510882618.X | 2015-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017092096A1 true WO2017092096A1 (zh) | 2017-06-08 |
Family
ID=55886639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2015/098730 Ceased WO2017092096A1 (zh) | 2015-12-03 | 2015-12-24 | 基于nfc的智能电网终端即插即用接入配电监控网方法 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105576826A (zh) |
| WO (1) | WO2017092096A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162986A (zh) * | 2021-03-25 | 2021-07-23 | 北京赛博云睿智能科技有限公司 | 一种多类型物联网平行接入协议自动适配方法及系统 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576826A (zh) * | 2015-12-03 | 2016-05-11 | 中国电力科学研究院 | 基于nfc的智能电网终端即插即用接入配电监控网方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100041332A1 (en) * | 2008-08-12 | 2010-02-18 | Sony Ericsson Mobile Communications Ab | Personal function pad |
| WO2014204369A1 (en) * | 2013-06-20 | 2014-12-24 | Telefonaktiebolaget L M Ericsson (Publ) | Electronic device, grid of communication points and methods for providing assistance to an electronic device |
| CN204425052U (zh) * | 2015-03-12 | 2015-06-24 | 国网上海市电力公司 | 终端为便携式管理器的电力安全管理系统 |
| CN204794356U (zh) * | 2015-06-09 | 2015-11-18 | 国网山东即墨市供电公司 | 一种电力设备控制系统 |
| CN105576826A (zh) * | 2015-12-03 | 2016-05-11 | 中国电力科学研究院 | 基于nfc的智能电网终端即插即用接入配电监控网方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9214988B2 (en) * | 2012-02-06 | 2015-12-15 | Qualcomm Incorporated | Methods and apparatus for improving peer communications using an active communication mode |
| IN2013CH06149A (zh) * | 2013-12-30 | 2015-07-03 | Samsung Electronics Co Ltd |
-
2015
- 2015-12-03 CN CN201510882618.XA patent/CN105576826A/zh active Pending
- 2015-12-24 WO PCT/CN2015/098730 patent/WO2017092096A1/zh not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100041332A1 (en) * | 2008-08-12 | 2010-02-18 | Sony Ericsson Mobile Communications Ab | Personal function pad |
| WO2014204369A1 (en) * | 2013-06-20 | 2014-12-24 | Telefonaktiebolaget L M Ericsson (Publ) | Electronic device, grid of communication points and methods for providing assistance to an electronic device |
| CN204425052U (zh) * | 2015-03-12 | 2015-06-24 | 国网上海市电力公司 | 终端为便携式管理器的电力安全管理系统 |
| CN204794356U (zh) * | 2015-06-09 | 2015-11-18 | 国网山东即墨市供电公司 | 一种电力设备控制系统 |
| CN105576826A (zh) * | 2015-12-03 | 2016-05-11 | 中国电力科学研究院 | 基于nfc的智能电网终端即插即用接入配电监控网方法 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162986A (zh) * | 2021-03-25 | 2021-07-23 | 北京赛博云睿智能科技有限公司 | 一种多类型物联网平行接入协议自动适配方法及系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105576826A (zh) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3648234B1 (en) | Wireless battery management apparatus and battery pack including same | |
| TWI444075B (zh) | 無線通訊網路中之點對點裝置的發現頻道及發現信標 | |
| US9332376B2 (en) | Method and technical equipment for short range data transmission | |
| US8471525B2 (en) | Apparatus and method for charging internal battery in wireless sensor network | |
| KR101433478B1 (ko) | 에너지 저장 시스템용 슬레이브 배터리 관리 시스템에 대한 자동 식별자 설정 방법 | |
| EP3893559B1 (en) | Method and apparatus for reducing electric power consumption of terminal in wireless communication system | |
| US20140065967A1 (en) | Processor-independent communication of network availability | |
| TW201807981A (zh) | 提供行動設備直接存取ＬｏＲａ資訊封包之ＬｏＲａ行動裝置及其資料傳輸方法 | |
| CN105046924A (zh) | 基于物联网的农田智能灌溉控制系统及其运行方法 | |
| CN107680399A (zh) | 无线车位检测方法及车位检测器 | |
| EP4120794A1 (en) | Electronic device using plurality of communication schemes, and control method therefor | |
| CN105262514B (zh) | 辐射式无线电能传输系统中接收端与发射端的交互方法 | |
| CN108022419A (zh) | 一种基于蓝牙和电力线载波的并行通讯系统及方法 | |
| WO2018058862A1 (zh) | 一种基于spi的数据传输方法及装置 | |
| CN109142861A (zh) | 智能电表的通讯方法及装置、智能电表 | |
| US11317347B2 (en) | Method and apparatus for providing service by using Bluetooth low energy technology | |
| JP2016511583A (ja) | マルチキャストデータおよびブロードキャストデータの電力節減のためのシステムおよび方法 | |
| WO2017092096A1 (zh) | 基于nfc的智能电网终端即插即用接入配电监控网方法 | |
| CN110636147B (zh) | 一种双控开关配网方法、装置、开关及智能开关系统 | |
| CN203984450U (zh) | 智能家居网关 | |
| CN114040368A (zh) | 一种基于ble蓝牙的数据传输方法、系统及蓝牙模块 | |
| CN101115217A (zh) | 一种寻呼接入终端的方法、系统及装置 | |
| CN107124691A (zh) | 一种低功耗蓝牙辅助的WiFi智能接入方法 | |
| US20150189693A1 (en) | Wireless communicator connectable to different types of wireless communication networks | |
| CN114963548A (zh) | 基于近场通信的热水器控制方法、装置及电子设备 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15909610 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 15909610 Country of ref document: EP Kind code of ref document: A1 |